Bugfix: moved the initialization of 4-vectors for daughters before cut checking,...

[u/mrichter/AliRoot.git] / PWG2 / RESONANCES / AliRsnPair.cxx

diff --git a/PWG2/RESONANCES/AliRsnPair.cxx b/PWG2/RESONANCES/AliRsnPair.cxx
index cfceeab27535baad57a1e177f36ca3a0e6244223..da0e0a996f641b2a82bd536538a464669103a830 100644 (file)
--- a/PWG2/RESONANCES/AliRsnPair.cxx
+++ b/PWG2/RESONANCES/AliRsnPair.cxx
@@ -122,6 +122,11 @@ Bool_t AliRsnPair::Fill
 
   AliDebug(AliLog::kDebug+2,"<-");
   
+  // first of all, compute the 4-momenta of the daughters
+  // and that of the mother, according to current pair def
+  // this could be needed for some cuts
+  fMother.SetDaughters(daughter0, fPairDef->GetMass(0), daughter1, fPairDef->GetMass(1));
+  
   // check for correct type-charge match for first element
   if (daughter0->RefType() != fPairDef->GetDaughterType(0)) return kFALSE;
   if (daughter0->ChargeChar() != fPairDef->GetCharge(0)) return kFALSE;
@@ -160,7 +165,6 @@ Bool_t AliRsnPair::Fill
   fEvent = ev0;
   
   // define pair & check
-  fMother.SetDaughters(daughter0, fPairDef->GetMass(0), daughter1, fPairDef->GetMass(1));
   fCutManager.SetEvent(fEvent);
   if (!fCutManager.PassMotherCuts(&fMother)) return kFALSE;